Figure 2. A contoured basement structure map, based on migrated multichannel and unmigrated single-channel seismic reflection profiles, showing the location of Leg 149 sites (except Site 901) with respect to basement relief. Contour interval is 0.25 s (two-way traveltime). Dotted and dashed lines indicate ship's tracks.

Figure 2. A contoured basement structure map, based on migrated multichannel and unmigrated single-channel seismic reflection profiles, showing the location of Leg 149 sites (except Site 901) with respect to basement relief. Contour interval is 0.25 s (two-way traveltime). Dotted and dashed lines indicate ship's tracks.